Packing ring



Aug. 25 v1924. 1,5%420 F. J.-Fa AsPoEHLER ET AL PACKING RING Filed July7 192i.

g ESL ,Il l n ...Milli JNVBNToRs y Patented Aug. 26, 1924.

UNITED STATES PATENT OFFICE.

FRED J'. FLASPOEHLER, WILLIAM A. STIEGLITZ, AND FRANK A. FLASPOEHLER, 0F

LOUISVILLE, KENTUCKY.

PACKING RING.

Application filed July 7, 1921. Serial No. 483,112.

To zZ-Z whom it may concern:

Be it known that we, FRED J. FLAs# roEHLEn, VILLIAM A. STIEGLITZ, andFRANK A. FLAsPoEH-LER, citizens of the United' pistonV rods and thelike. Moreparticularly the invention relates to a sectional metallicpacking.

One object of the invention is to improve the general construction of`devices oi' this character.

A second object of the invention is to provide a metallic packing havingsectional rings peculiarly arranged to prevent rotation of one ring withrespect to the other and thereby prevent aligning of the gaps betweenthe ring sections.

A third object of the invention is the provision of a novel stuffing boxand packing ring arrangement in such devices.

With the above and other objects in view, the invention consists ingeneral of certain novel details ot construction and combinations ofparts hereinafter fully described, illustrated in the accompanyingdrawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate likeparts in the several views, and

Figure 1 is a side elevation partly in section showing the end of acylinder, a piston rod and the improved packing.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is a detail perspective view of one of the outer wedge ringsegments or sections.

Figure 4 is a detail perspective view of one of the inner wedge ringsections or segments.

In the embodiment of the invention herein illustrated there is discloseda boss 10 having iange 11 therearound. This boss is the usual boss foundon the front end of a cylinder and is provided with an .opening throughwhich passes the piston rod 12, the dimensions of the opening and pistonrod being such that space is left between the inner wall of the openingand the piston rod as indicated at 13. In the space 13 is fitted aremovable stuffing box 14 having a flange 15 which rests on a packing 16supported on a seat 17 formed on the end ot the boss 10. This stuffingbox is recessed to provide an annular space between the rod into innerwall of the boX and terminates at the bottom in a surface 18 which isinclined inwardlv toward'the rod 12 as clearly seen in Figure 1. In thebottom ot this annular recess is seated a` plurality ot seat ringsections' 19 similar' in shape to those shown in Figure et. On thesesections are seated other sections 2O ofthe same formation whilesections 21, best seen in detail in igure 3, the sections 21 and 20cooperating to form a ring which is substair tially rectangular in crosssection. Similar pairs of sections 2O and 21 are arranged above the lastmentioned sections so as to torni other rings which are substantiallyrectangular in cross section. On the outermost sections 20 is a recessclosure ring 22 and in the recess of this ring is seated one end ot acoil spring 28 which surrounds the rod 12 and passes up to a recess 241in a gland or plate 25, the spring being seated at its outer end in thebottom of said recess. It will be observed from Figure 2 that each ofthe rings is preferably composed of 2 wedge ring segments which are notquite 1800. Each ot the ring segments of sections carries a pin 26 theends of which pins lie in the gaps or spaces between the ends of thecooperating ring sections as clearly seen in Figure 2. By this meansthese rings are prevented from so rotating as to bring the spacesbetween the ends of the sections into alignment with each other tliuspermitting the escape of steam or the li e.

At 27 are adjusting bolts by means of which the tension on the spring 23can be regulated and it will be observed that pressure on this springwill force the rings 2O inward and the rings 21 outward so that a tightpacking is at all times obtained. It is obvious that this pressure canbe varied by properly manipulating the bolts 27 so as to compress thespring to a greater or less degree as may be desired.

The-re has thus been provided a simple and efficient device of the kinddescribed and for the purpose specified.

It is obvious that minor changes may be made in the form andconstruction of the invention without departing from the mate a pistonrod passing through an opening ,rial principles thereof.

It is not therefore desired to: confine the invention to the exact formherein shown and described, but itV isk wished tofinclude all such asproperly come within the scope claimed.

Having thus described the invention, what is claimed as new, is

l. The combination with a cylinder and a piston rod passing through anopening in said cylinder, of a` stufling rbox tted between the rod andthe wall of the opening, said stuiiing box being arranged to Jform anannular recess around the rod having a bottom. bevelled inwardly towardthe rod, a sectional seat ring iitted in said recess against the bottom,other sectional cylindrical rings arranged in pairs with their inclinedfaces abutting and their cyin said cylinder, of a stuffing box fittedbetween the rod and the wall of the opening, said stufling box beingarranged to form an annular recess around the rod having a bottombevelled inwardly toward the rod, a sectional seat ring iitted in said.recess against the bottom, other sectional cylindrical rings arranged inpairs with their inclined faces abutting and their cylindrical facesbearing respectively on the piston and the wall of the opening, theinner ring of the first .pair bearing on the sectional seat ring, pinseach projecting from the several rings into the spaces be# tweenadjacent sections'of the cooperating rings, a plate mounted in spacedrelation to the end of the stuling box and movable to and from the box,means to hold the plate in adjusted position, and a spring interposedbetween the plateand the outermost of said rings( i l In testimonywhereof we aix our signatures.

FRED J. FLAsPoiiHnER.. WM. .n.srinenrrn FRANKj A.. FLASPOEHLER.

